An object is dropped from a height of 400 feet. The amount of time, in seconds, the object takes to hit the ground can be found by solving the equation -16t^2+400=0 . How many seconds will it take to hit the ground?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Write 17/20 as a decimal and as a percent.

Describe what moves you could use to create the transformation of the original image shown at right